Carcinoembryonic antigen blood test. Last reviewed: September 20, 2013. The CEA test measures the level of carcinoembryonic antigen (CEA) in the blood. CEA is a protein normally found in the tissue of a developing baby in the womb.The blood level of this protein disappears or becomes very low after birth.he CEA test measures the level of carcinoembryonic antigen (CEA) in the blood.
If the pH of your blood falls below 7.35, the result is a condition called acidosis, a state that leads to central nervous system depression. Severe acidosis-where blood pH falls below 7.00 - can lead to a coma and even death. If the pH of your blood rises above 7.45, the result is alkalosis.
An alkaline phosphatase level test (ALP test) measures the amount of alkaline phosphatase enzyme in your bloodstream. The test requires a simple blood draw and is often a routine part of other blood tests. Abnormal levels of ALP in your blood most often indicate a problem with your liver and/or bones.